Evidence map›Paper›PMID 34696520›Full record

ReviewViruses2021

Innate Immune Responses to Influenza Virus Infections in the Upper Respiratory Tract.

Edin J Mifsud, Miku Kuba, Ian G Barr

Open access · goldAbstract readReview
In one paragraph

Review in Viruses, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 60 papers.

0numbers the graph read from it
0cells of the map it votes in
60citing papers in PubMed
8.3field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

60 citing papers in PubMed, 89 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Journal of thoracic disease · 2026
    Article
  5. Immune cell disorder in viral pneumonia.Journal of translational medicine · 2026
    Review
  6. Article
  7. Article
  8. Article
  9. The temporal sequence of influenza H1N1 andFrontiers in microbiology · 2026
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Maladaptive trained immunity in viral infections.The Journal of clinical investigation · 2025
    Review
  17. Review
  18. Review
  19. Review
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 1 country.

Edin J MifsudWHO Collaborating Centre for Reference and Research on Influenza, VIDRL, Peter Doherty Institute for Infection and Immunity, Melbourne 3053, Australia.
Miku KubaWHO Collaborating Centre for Reference and Research on Influenza, VIDRL, Peter Doherty Institute for Infection and Immunity, Melbourne 3053, Australia.ORCID 0000-0002-1300-3855
Ian G BarrWHO Collaborating Centre for Reference and Research on Influenza, VIDRL, Peter Doherty Institute for Infection and Immunity, Melbourne 3053, Australia.
The University of Melbourne · AUVictorian Infectious Diseases Reference Laboratory · AU

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The innate immune system is the host's first line of immune defence against any invading pathogen. To establish an infection in a human host the influenza virus must replicate in epithelial cells of the upper respiratory tract. However, there are several innate immune mechanisms in place to stop the virus from reaching epithelial cells. In addition to limiting viral replication and dissemination, the innate immune system also activates the adaptive immune system leading to viral clearance, enabling the respiratory system to return to normal homeostasis. However, an overzealous innate immune system or adaptive immune response can be associated with immunopathology and aid secondary bacterial infections of the lower respiratory tract leading to pneumonia. In this review, we discuss the mechanisms utilised by the innate immune system to limit influenza virus replication and the damage caused by influenza viruses on the respiratory tissues and how these very same protective immune responses can cause immunopathology.

Indexed as

AnimalsEpithelial CellsHumansImmunity, InnateInfluenza A virusInfluenza, HumanLungOrthomyxoviridaeOrthomyxoviridae InfectionsRespiratory Tract Infectionsinfluenza virusinnate immune systemupper respiratory tract

Identifiers

PMID34696520
PMCPMC8541359
OpenAlexW3207284138

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.